You can claim confidentiality of substance components in mixtures through applying to use an alternative name at the HSE.
https://www.hse.gov.uk/chemical-classification/classification/request-alternative-name.htm
There are currently no fees for making this claim.
Rules on which substances can be claimed as confidential
Just like EU-CLP, you can only claim the use of an alternative chemical name for lower-hazard substances; and cannot make a claim for substances which hold a Workplace Exposure Limit.
Extract from HSE webpage:
You can request the use of an alternative chemical name for substances that:
- have not been assigned a workplace exposure limit
- are classified exclusively as one or more of the following hazard categories:
- any of the hazard categories referred to in Part 2 of Annex I of the GB CLP Regulation (physical hazards)
- Acute toxicity, Category 4
- Skin corrosion/irritation, Category 2
- Serious eye damage/eye irritation, Category 2
- Specific target organ toxicity – Single exposure, Category 2 or 3
- Specific target organ toxicity – Repeated exposure, Category 2
- Hazardous to the aquatic environment – Chronic Category 3 or 4
WHAT TO DO IF YOU HOLD A PRE-CLP CONFIDENTIALITY CLAIM
CHIP confidentiality claims were respected under EU-CLP, so it is likely that they will still be honoured by the HSE. However, we recommend you check with them to make sure.
WHAT TO DO IF YOU HOLD AN EU-CLP CONFIDENTIALITY CLAIM
As far as we are aware, this does not cover GB, so you should make a new claim. However, as this is free of charge, it will only take your time.
CONFIDENTIAL MIXTURE COMPONENTS ON THE GB-SDS
You only need to identify these components by:
- the alternative name as agreed with the regulators
- the % w/w or % v/v (as applicable)
- the hazard classification